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Novel fuel level pressure sensor

A pressure sensor and fuel technology, applied in the direction of displaying liquid level indicators through pressure measurement, can solve the problems of large workload, reduced performance and high cost, and achieve the effects of low manufacturing cost, stable performance and high reliability

Inactive Publication Date: 2013-08-07
杭州绿健科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ultrasonic type requires high-precision grinding and polishing on the surface of the fuel tank, which not only has a large workload and high cost, but also is not durable, and its performance will decrease rapidly after a period of time

Method used

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Experimental program
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Embodiment Construction

[0014] like figure 1 and 2 As shown, a novel fuel level pressure sensor of the present invention includes: a disc-shaped body 1, the middle part of the right end of the disc-shaped body 1 is recessed to the left to form a circular hole chamber 12, and the right end of the disc-shaped body 1 is passed through a bolt 3 is screwed with an annular flange cover 2, and a nanomaterial composite elastic film 11 is sandwiched between the annular flange cover 2 and the disc-shaped body 1, and the nanomaterial composite elastic film 11 is located on the In the middle of the geometric dimensions of the new fuel level pressure sensor, a sealed chamber composed of a nano-material composite elastic film 11 and a circular hole chamber 12, the side wall of the sealed chamber is provided with a wire hole 6, and the signal wire 7 passes through the wire hole 6 seal penetrates and is electrically connected with the nanomaterial composite elastic film 11. Preferably, the right end of the disc-sh...

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Abstract

The invention discloses a novel fuel level pressure sensor. The novel fuel level pressure sensor comprises a discoid machine body, wherein the middle part of the right end of the discoid machine body concaves toward the left to form a round hole cavity; the right end of the discoid machine body is screwed with a ring-shaped flange cover through a bolt; a nanometer material campsite elastic film is clamped between the ring-shaped flange cover and the discoid machine body, and is positioned in the middle of the geometric size of the novel fuel level pressure sensor; the nanometer material campsite elastic film and the round hole cavity form a sealed cavity; a wire hole is formed in the side wall of the sealed cavity; and a signal wire penetrates in a sealing manner through the wire hole and is electrically connected to the nanometer material composite elastic film. The novel fuel level pressure sensor provided by the invention is small in size, stable in property, high in reliability, easy to assemble, low in manufacturing cost and long in service life.

Description

technical field [0001] The invention relates to a pressure sensor, in particular to a fuel level pressure sensor. Background technique [0002] There are many problems in the existing oil level gauges, for example, the effective life of the resistance type is very short, and some can only be used for 3 months. The performance of the capacitive type is greatly affected by the oil and the environment, there are measurement errors, and the cost is high. Regardless of whether it is a resistive type, a capacitive type, or an ultrasonic type that has just been tested, the installation is complicated and the amount of engineering is large. For example, if a larger hole is to be drilled on the fuel tank, multiple screws must be installed. The ultrasonic type requires high-precision grinding and polishing on the surface of the fuel tank, which not only has a large workload and high cost, but also is not durable, and its performance will decrease rapidly after a period of time. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/14
Inventor 姚宝国王国库吴良军林巧丽李欣生
Owner 杭州绿健科技有限公司